package LeetCode;
import java.util.*;

public class NestedInteger {
    public NestedInteger(){

    }
    // Constructor initializes a single integer.
    public NestedInteger(int value){

    }
    // @return true if this NestedInteger holds a single integer, rather than a nested list.
    public boolean isInteger(){
        return true;
    }
    // @return the single integer that this NestedInteger holds, if it holds a single integer
    // Return null if this NestedInteger holds a nested list
    public Integer getInteger(){
        return 1;
    }
    // Set this NestedInteger to hold a single integer.
    public void setInteger(int value){

    }
    // Set this NestedInteger to hold a nested list and adds a nested integer to it.
    public void add(NestedInteger ni){

    }
    // @return the nested list that this NestedInteger holds, if it holds a nested list
    // Return empty list if this NestedInteger holds a single integer
    public List<NestedInteger> getList(){
        return new ArrayList<>();
    }
}
